Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Presence (in %) of the different data types over all datasets. The main bar shows the average presence, the error bars show the standard deviation between the different medical specialties. Abbreviations are explained in the “dataset” section.
